Question

Give a mechanism to explain the two products formed in the following reaction.

Short answer

The mechanism of the given reaction is as follows,

Step-by-step solution

Concept

The bromination reaction is the process by which one or more bromine atoms are added to a chemical. Halogination reaction includes bromination reactions. N-bromosuccinimide, also known as NBS (sourse of Br), is employed in this reaction as a reagent to aid in radical substitution.

A free radical is a molecule that lacks charge and has an unpaired electron. Free radicals are extremely reactive substances with a brief shelf life.

Explain the mechanism

1. First, the reagent N-bromosuccinimide (NBS) that produces the bromine radical Br undergoes radical formation.

2. In the second step, the 3-methylbut-1-ene reacts with the benzylic free radical to form tertiary allylic free radical.

3. In the third step, the tertiary allylic free radical is gives the reasonance structure of primary allylic free radical,